| 2-Methyl-3-(methylthio)pyrazine Basic information |
| Product Name: | 2-Methyl-3-(methylthio)pyrazine |
| Synonyms: | METHYL MERCAPTO METHYLPYRAZINE;METHYL MERCAPTO-METHYLPYRAZINES;METHYL(METHYLTHIO)PYRAZINE;(METHYLTHIO)METHYLPYRAZINE;TIMTEC-BB SBB008573;2-Methyl-3-(methylsulfanyl)pyrazine;2-methyl-3-(methylthio)-pyrazin;2-METHYLMERCAPTO-3-METHYLPYRAZINE |
| CAS: | 2882-20-4 |
| MF: | C6H8N2S |
| MW: | 140.21 |
| EINECS: | 220-736-8 |
| Product Categories: | Building Blocks;Heterocyclic Building Blocks;Heterocyclic Compounds;Mono- & Polyalkylpyrazines;Pyrazines;Pyridines ,Halogenated Heterocycles |
| Mol File: | 2882-20-4.mol |
| 2-Methyl-3-(methylthio)pyrazine Chemical Properties |
| Boiling point | 213-214 °C (lit.) |
| density | 1.15 g/mL at 25 °C (lit.) |
| refractive index | n |
| FEMA | 3208 | (METHYLTHIO)METHYLPYRAZINE (MIXTURE OF ISOMERS) |
| Fp | 210 °F |
| storage temp. | Sealed in dry,Room Temperature |
| pka | 0.88±0.10(Predicted) |
| form | clear liquid |
| color | Colorless to Almost colorless |
| JECFA Number | 797 |
| CAS DataBase Reference | 2882-20-4(CAS DataBase Reference) |
| NIST Chemistry Reference | Pyrazine, 2-methyl-3-(methylthio)-(2882-20-4) |
| EPA Substance Registry System | Pyrazine, 2-methyl-3-(methylthio)- (2882-20-4) |
| Safety Information |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-36 |
| RIDADR | UN 3334 |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 29339900 |
| MSDS Information |
| Provider | Language |
|---|---|
| ACROS | English |
| SigmaAldrich | English |
| ALFA | English |
| 2-Methyl-3-(methylthio)pyrazine Usage And Synthesis |
| Chemical Properties | clear colorless liquid |
| Chemical Properties | 2-Methyl-3(or 5 or 6)-methylthiopyrazine has a roasted almond, hazelnut and vegetable aroma. |
| Preparation | From 2-methylchloropyrazine; a mixture of 2-methyl-3-methylthiopyrazine, 2-methyl-5-methylthiopyrazine, and 2-methyl-6-methylthiopyrazine is obtained. |
| Aroma threshold values | Detection: 4 to 60 ppb. Aroma characteristics at 1.0%: toasted popcorn, roasted almond, hazelnut, peanut and cashewnutty, with a caramellic and corn-chip nuance. |
| Taste threshold values | Taste characteristics at 3 to 10 ppm: nutty, roasted and earthy with coffee and corn nuances, peanut and pecan nutty, popcorn and corn chip–like with a burnt musty nuance. |
| 2-Methyl-3-(methylthio)pyrazine Preparation Products And Raw materials |
| Raw materials | Sodium thiomethoxide-->2-Chloropyrazine |
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